main.c

来自「usb接口编程」· C语言 代码 · 共 51 行

#include "71x_lib.h"
#include "LED.h"
#include "Key.h"
#include "mouse.h"
#include "USB_lib.h"

#define SPEED_P		10
#define MAX_SPEED	(20 << SPEED_P)

void Main(void)
{
	int dx, dy;

	#ifdef DEBUG
		debug();
	#endif

	LED_Init();
	Key_Init();
	Mouse_Init();

	while(1)
	{
		int kLeft,kUp,kDown,kRight;
		kLeft = Key_State(KEY3,GPIO1);
		kRight= Key_State(KEY4,GPIO0);
		kUp=Key_State(KEY5,GPIO0);
		kDown= Key_State(KEY6,GPIO0);

		//LED_Set(0, Device_Info.Current_Configuration ? LED_ON : LED_OFF);
		LED_Set(LED3,GPIO1, Device_Info.Current_Configuration ? LED_ON : LED_OFF);

		if(kLeft | kUp | kDown | kRight) // need not to use "||"
		{
			if(kLeft && dx > -MAX_SPEED)
				dx--;
			if(kUp && dy > -MAX_SPEED)
				dy--;
			if(kDown && dy < MAX_SPEED)
				dy++;
			if(kRight && dx < MAX_SPEED)
				dx++;
		}
		
		else
			dx = 0, dy = 0;

		Mouse_Action(dx >> SPEED_P, dy >> SPEED_P, (kLeft & kRight) | (kUp & kDown) << 1);
	}
}